中国物理B ›› 2022, Vol. 31 ›› Issue (2): 28204-028204.doi: 10.1088/1674-1056/ac272e

所属专题： SPECIAL TOPIC — Organic and hybrid thermoelectrics

• • 上一篇    下一篇

N-type core-shell heterostructured Bi2S3@Bi nanorods/polyaniline hybrids for stretchable thermoelectric generator

Lu Yang(杨璐)1,†, Chenghao Liu(刘程浩)1,†, Yalong Wang(王亚龙)1, Pengcheng Zhu(朱鹏程)4, Yao Wang(王瑶)1,3,‡, and Yuan Deng(邓元)2,3,§   

  1. 1 School of Materials Science and Engineering, Beihang University, Beijing 100191, China;
    2 Hangzhou Innovation Institute, Beihang University, Hangzhou 310052, China;
    3 Research Institute for Frontier Science, Beihang University, Beijing 100191, China;
    4 School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
  • 收稿日期:2021-08-18 修回日期:2021-09-09 接受日期:2021-09-16 出版日期:2022-01-13 发布日期:2022-01-22
  • 通讯作者: Yao Wang, Yuan Deng E-mail:wang-yao@buaa.edu.cn;dengyuan@buaa.edu.cn
  • 基金资助:
    The study was supported by the National Key Research and Development Program of China (Grant Nos. 2018YFA0702100 and 2018YFB0703600), the National Natural Science Foundation of China (Grant Nos. 51872009 and 92066203), Beijing Nova Programme Interdisciplinary Cooperation Project, and the Fundamental Research Funds for the Central Universities, China.

N-type core-shell heterostructured Bi2S3@Bi nanorods/polyaniline hybrids for stretchable thermoelectric generator

Lu Yang(杨璐)1,†, Chenghao Liu(刘程浩)1,†, Yalong Wang(王亚龙)1, Pengcheng Zhu(朱鹏程)4, Yao Wang(王瑶)1,3,‡, and Yuan Deng(邓元)2,3,§   

  1. 1 School of Materials Science and Engineering, Beihang University, Beijing 100191, China;
    2 Hangzhou Innovation Institute, Beihang University, Hangzhou 310052, China;
    3 Research Institute for Frontier Science, Beihang University, Beijing 100191, China;
    4 School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
  • Received:2021-08-18 Revised:2021-09-09 Accepted:2021-09-16 Online:2022-01-13 Published:2022-01-22
  • Contact: Yao Wang, Yuan Deng E-mail:wang-yao@buaa.edu.cn;dengyuan@buaa.edu.cn
  • Supported by:
    The study was supported by the National Key Research and Development Program of China (Grant Nos. 2018YFA0702100 and 2018YFB0703600), the National Natural Science Foundation of China (Grant Nos. 51872009 and 92066203), Beijing Nova Programme Interdisciplinary Cooperation Project, and the Fundamental Research Funds for the Central Universities, China.

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摘要： With the growing need on distributed power supply for portable electronics, energy harvesting from environment becomes a promising solution. Organic thermoelectric (TE) materials have advantages in intrinsic flexibility and low thermal conductivity, thus hold great prospect in applications as a flexible power generator from dissipated heat. Nevertheless, the weak electrical transport behaviors of organic TE materials have severely impeded their development. Moreover, compared with p-type organic TE materials, stable and high-performance n-type counterparts are more difficult to obtain. Here, we developed a n-type polyaniline-based hybrid with core-shell heterostructured Bi2S3@Bi nanorods as fillers, showing a Seebeck coefficient -159.4 μV/K at room temperature. Further, a couple of n/p legs from the PANI-based hybrids were integrated into an elastomer substrate forming a stretchable thermoelectric generator (TEG), whose function to output stable voltages responding to temperature differences has been demonstrated. The in situ output performance of the TEG under stretching could withstand up to 75% elongation, and stability test showed little degradation over a one-month period in the air. This study provides a promising strategy to develop stable and high thermopower organic TEGs harvesting heat from environment as long-term power supply.

关键词: polyaniline-based hybrids, thermoelectric properties, n-type, stretchable electronics

Abstract: With the growing need on distributed power supply for portable electronics, energy harvesting from environment becomes a promising solution. Organic thermoelectric (TE) materials have advantages in intrinsic flexibility and low thermal conductivity, thus hold great prospect in applications as a flexible power generator from dissipated heat. Nevertheless, the weak electrical transport behaviors of organic TE materials have severely impeded their development. Moreover, compared with p-type organic TE materials, stable and high-performance n-type counterparts are more difficult to obtain. Here, we developed a n-type polyaniline-based hybrid with core-shell heterostructured Bi2S3@Bi nanorods as fillers, showing a Seebeck coefficient -159.4 μV/K at room temperature. Further, a couple of n/p legs from the PANI-based hybrids were integrated into an elastomer substrate forming a stretchable thermoelectric generator (TEG), whose function to output stable voltages responding to temperature differences has been demonstrated. The in situ output performance of the TEG under stretching could withstand up to 75% elongation, and stability test showed little degradation over a one-month period in the air. This study provides a promising strategy to develop stable and high thermopower organic TEGs harvesting heat from environment as long-term power supply.

Key words: polyaniline-based hybrids, thermoelectric properties, n-type, stretchable electronics

中图分类号:  (Conducting polymers)

  • 82.35.Cd
84.60.Rb (Thermoelectric, electrogasdynamic and other direct energy conversion) 84.60.Bk (Performance characteristics of energy conversion systems; figure of merit) 85.80.Fi (Thermoelectric devices)